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Selective laser melting of an Al-Si-Mg-Cu alloy: feasibility and processing aspects
- Source :
- Materials and Manufacturing Processes. 36:1438-1449
- Publication Year :
- 2021
- Publisher :
- Informa UK Limited, 2021.
-
Abstract
- A customized Al-Cu-Mg-Si alloy is successfully processed by selective laser melting. AlSi10Mg powder, used as a master alloy, has been mixed with pure Cu powder through a fluidized bed and the obtained powder mix was used as feedstock material for the printing process. To investigate the feasibility of the process and to discuss the effect of the process parameters, a two-step experimental campaign has been carried out: in the first batch of experiments the energy density has been varied to frame the processing window while in the second batch the energy density has been kept constant and the main process parameters have been varied to highlight their influence on the process. Density, porosity, and microhardness have been chosen as output to evaluate the success of the process. The microstructure and composition phase were studied through scanning electron microscopy and X-ray elemental mapping, respectively. A maximum relative density of 97% has been obtained while a predominant role of the laser beam power has been observed.
- Subjects :
- 0209 industrial biotechnology
melting
Materials science
alsi10mg
Alloy
02 engineering and technology
engineering.material
Selective
01 natural sciences
Industrial and Manufacturing Engineering
law.invention
power
020901 industrial engineering & automation
law
0103 physical sciences
General Materials Science
Selective laser melting
010302 applied physics
density
Mechanical Engineering
Metallurgy
proce
Laser
slm
laser
mixture
parameter
Mechanics of Materials
Fluidized bed
Scientific method
engineering
cu
✚
energy
Subjects
Details
- ISSN :
- 15322475 and 10426914
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- Materials and Manufacturing Processes
- Accession number :
- edsair.doi.dedup.....5c0946631112583b4b7caee5968cc50d